Struct ChallengeParams

pub struct ChallengeParams {
    pub difficulty: u32,
    pub val: Integer,
}

The parameters for a proof-of-work challenge.

This contains most of the logic, however [KctfPow] and [Challenge] should be used instead as they provide a nicer API. If you want to serialize it to a string, use the Display implementation.

Fields

difficulty: u32

The difficulty of the challenge.

val: Integer

The starting value of the challenge.

Implementations

impl ChallengeParams

pub fn decode_challenge( chall_string: &str, ) -> Result<ChallengeParams, &'static str>

Decodes a challenge from a string and returns it.

For optimization purposes, the difficulty of the challenge must be able to fit in a u32. This shouldn’t be an issue, since difficulties that can’t fit into a u32 will probably take too long anyways.

pub fn generate_challenge(difficulty: u32) -> ChallengeParams

Generates a random challenge given a difficulty.

pub fn solve(self) -> String

Solves a challenge given a proof-of-work system and returns the solution.

pub fn check(&self, sol: &str) -> Result<bool, &'static str>

Checks a solution to see if it satisfies the challenge under a given proof-of-work system.

Trait Implementations

impl Clone for ChallengeParams

fn clone(&self) -> ChallengeParams

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for ChallengeParams

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Display for ChallengeParams

fn fmt(&self, fmt: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Ord for ChallengeParams

fn cmp(&self, other: &ChallengeParams) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for ChallengeParams

fn eq(&self, other: &ChallengeParams) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialOrd for ChallengeParams

fn partial_cmp(&self, other: &ChallengeParams) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Rhs) -> bool

Tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

Tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Rhs) -> bool

Tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl Eq for ChallengeParams

impl StructuralPartialEq for ChallengeParams